French carmaker Renault and Japanese partner Nissan said their alliance was in no danger of being dissolved, denying a media report of a potential break-up that sent their shares skidding to multi-year lows. 

The alliance, which also includes Japan's Mitsubishi, is "solid, robust, everything but dead," the chairman of Renault, Jean-Philippe Senard, told Belgian newspaper L'Echo. 

Nissan, in response to "speculative international media reports," said it was "in no way considering dissolving the alliance." 

"The alliance is the source of Nissan's competitiveness," the Japanese automaker said in a statement. 

"Through the alliance, to achieve sustainable and profitable growth, Nissan will look to continue delivering win-win results for all member companies," the company added. 

Renault shares hit six-year lows yesterday as investors worried the French group's 20-year cost-sharing alliance with Nissan was headed for a break-up without Carlos Ghosn to hold it together. 

Long-standing tensions in the Franco-Japanese partnership have been heightened since Ghosn's arrest in Tokyo in November 2018 on allegations of financial misconduct, which he denies. 

A Financial Times report yesterday that Nissan executives are making contingency plans for a split with Renault appeared to accelerate a sell-off in the French manufacturer's shares. 

Nissan shares tumbled to their lowest in eight and a half years in Tokyo today.

Meanwhile, French Finance Minister Bruno Le Maire said today he expected carmaker Renault to name its new chief executive in a few days. 

Le Maire also said on French CNews TV that media reports that some Nissan executives wanted to break up the alliance with Renault were "malicious".